Home / 154,957,882-213,851,548.48-85,343,244.40

Finding the Fourth Proportional to 154,957,882, 213,851,548.48 and 85,343,244.40

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Solution

The fourth proportional to 154,957,882, 213,851,548.48 and 85,343,244.40 is: 117,779,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,957,882 : 213,851,548.48 = 85,343,244.40 : x
  2. Step 2: Convert to fraction form
    154,957,882/213,851,548.48 = 85,343,244.40/x
  3. Step 3: Cross multiply
    154,957,882x = 213,851,548.48 × 85,343,244.40
  4. Step 4: Simplify right side
    154,957,882x = 18,250,784,967,247,088
  5. Step 5: Solve for x
    x = 18,250,784,967,247,088/154,957,882
  6. Step 6: Final answer
    x = 117,779,003.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.